Here at The Profitable Entrepreneur, we’ve never met a productivity hack we didn’t like. We’re always looking for ways to maximize our time, cut through the clutter and get more of the important stuff done each day.

It’s one of those crazy interview questions you hear about—and, admittedly, is fun to talk about—designed to test a candidate’s ability to think on his feet. But experts agree that in the long run curveball questions like this one don’t do much in the way of predicting long-term success in a role.

A happy team of employees leads to a profitable company. But employee happiness isn’t something that just takes care of itself. It’s a piece of your company culture you must actively work toward from the top down.

When we think of burnout, we usually picture the times when we’re firing on all cylinders for weeks on end, perhaps working toward a major milestone or just struggling to keep the ship afloat. But research suggests there’s a different kind of burnout that’s unrelated to overwork—and the cause might surprise you.

Billing. It’s the single most important process to ensure the livelihood of your business. After all, if you run out of cash, it’s game over.

And yet, it’s a process most entrepreneurs are running with rampant inefficiency. You’re so focused on doing the actual work that getting paid for the work becomes an afterthought. For a profitable business owner, though, it should be the other way around. Streamlining and optimizing your billing process should take a front seat.